Question 12 of 20Click to see additional instructionsThe medal count for the 2018 winter Olympics is recorded below. Run an independence test to find out if the medal won isdependent on country. Use α=0.10GoldSilverBronzeNorway171411Germany1696Canada13911United States12107Enter the test statistic - round to 4 decimal places.
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Feedback:
We are running a Chi-Square Test for Independence. Copy and Paste the table into Excel. You are given the Observed Counts in the table.
Next you need to sum the rows and columns. Once you have those you need to calculate the Expected Counts.
You need to find the
probability of the row and then multiple it by the column total.
Gold
Silver
Bronze
Sum
Norway
17
14
11
42
Germany
16
9
6
31
Canada
13
9
11
33
United States
12
10
7
29
Sum
58
42
35
135
Gold
Silver
Bronze
Norway
=58*(42/135)
=42*(42/135)
=35*(42/135)
1.0/ 1.0 PointsQuestion 13 of 20A university changed to a new learning management system during the past school year. The school wants to find outhow it’s working for the different departments – the results in preference found from a survey are below. Run a test forindependence at α=0.05Prefers Old LMSPrefers New LMSNo PreferenceSchool of Business18298School of Science41114School of Liberal Arts25207After running an independence test, can it be concluded that preference in learning management system is dependent ondepartment?
.
B
Feedback:
We are running a Chi-Square Test for Independence. Copy and Paste the table into Excel. You are given the Observed Counts in the table.
We need to calculate the Expected Counts. Then sum up the rows and column.
You need to find the probability of the row and then multiple
it by the column total.
Prefers Old LMS
Prefers New LMS
No Preference
Sum
School of Business
18
29
8
55
School of Science
41
11
4
56
School of Liberal Arts
25
20
7
52
Sum
84
60
19
163
